<template>
  <div>
    <template v-for="(item, index) in options">
      <template v-if="values.includes(String(item.value))">
        <el-text v-if="item.elTagType == 'text' || item.elTagType == ''" :type="item.elTagClass">
          {{ item.label }}
        </el-text>
        <el-tag v-else-if="item.elTagType == 'tag'" :type="item.elTagClass" :effect="item.themeClass">
          {{ item.label }}
        </el-tag>
      </template>
    </template>
    <template v-if="unmatch && showValue">
      {{ unmatchArray | handleArray }}
    </template>
  </div>
</template>

<script setup>
// 记录未匹配的项
const unmatchArray = ref([]);

const props = defineProps({
  // 数据
  options: {
    type: Array,
    default: null,
  },
  // 当前的值
  value: [Number, String, Array, Boolean],
  // 当未找到匹配的数据时，显示value
  showValue: {
    type: Boolean,
    default: true,
  },
  separator: {
    type: String,
    default: ",",
  }
}); 

const values = computed(() => {
  if (props.value === null || typeof props.value === 'undefined' || props.value === '') return [];
  let v = Array.isArray(props.value) ? props.value.map(item => '' + item) : String(props.value).split(props.separator);
  return v;
});

const unmatch = computed(() => {
  unmatchArray.value = [];
  // 没有value不显示
  if (props.value === null || typeof props.value === 'undefined' || props.value === '' || props.options.length === 0) return false
  // 传入值为数组
  let unmatch = false // 添加一个标志来判断是否有未匹配项
  values.value.forEach(item => {
    if (!props.options.some(v => String(v.value) === item)) {
      unmatchArray.value.push(item)
      unmatch = true // 如果有未匹配项，将标志设置为true
    }
  })
  return unmatch // 返回标志的值
});

function handleArray(array) {
  if (array.length === 0) return "";
  return array.reduce((pre, cur) => {
    return pre + " " + cur;
  });
}
</script>

<style scoped>
.el-tag+.el-tag {
  margin-left: 10px;
}
</style>
